WAcetic acid
WAluminium acetotartrate
WBetamethasone
WBoric acid
WChloramphenicol
WChlorhexidine
WCiprofloxacin
WClioquinol
WCocaine
WCortisol
WDexamethasone
WFluocinolone acetonide
WGentamicin
WMiconazole
WNeomycin
WNitrofurazone
WOfloxacin
WPolymyxin B
WPrednisolone
WRifamycin
WTetracycline